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Silas Weir Mitchell’s sway meter for measuring postural sway

Silas Weir Mitchell’s sway meter for measuring postural sway consisted of a pair of graduated rulers oriented perpendicular to each other and fixed upon a stand (Mitchell SW, Dercum FX. Nervous diseases and their treatment: general considerations. In: Dercum FX, editor. A Text-Book on Nervous Diseases by American Authors. Philadelphia: Lea Brothers & Co, 1895:2-50.)

Associated Disorders

  • Ataxia
  • Binswanger disease
  • Dysequilibrium
  • Myasthenia gravis
  • Myelopathy
  • Myopathies
  • Neuropathy
  • Normal pressure hydrocephalus
  • Parkinsonism
  • Psychogenic movement disorders
  • Stroke
  • Vestibular disorders